Correct Option (c)
Reason : The ability of a gene to affect an organism in any ways is called pleiotropy (Gr. Pleion - more) and that gene is called as pleiotropic gene, e.g. individuals heterozygous for the sickle-cell anaemia (Hbᴬ Hbˢ) are resistant to malaria.
Correct Option (c) Reason : The ability of a gene to affect an organism in any ways is called pleiotropy (Gr. Pleion - more) and that gene is called as pleiotropic gene, e.g. individuals heterozygous for the sickle-cell anaemia (Hbᴬ Hbˢ) are resistant to malaria.